My daughter just took (without studying) a practice SAT and scored a 1390 and an ACT and scored a 31. He wants to study for one of them and take it in August or September. She wants to either get a 1500 SAT or a 34 ACT. Which would be easier to accomplish if she studies?

Which did she prefer?

The ACT, but only slightly

The ACT score is slightly better than the SAT score, so go with her preference.
Does she know that a 1500 SAT is a 33 ACT according to the concordance tables?

@AroundHere : We did not know that! Thank you!

If she has good time management I’d recommend ACT, as the questions are far easier but you get less time.